CN215968877U

CN215968877U - Cutter capable of quickly switching holding postures

Info

Publication number: CN215968877U
Application number: CN202120149808.1U
Authority: CN
Inventors: 于世轩
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2022-03-08
Anticipated expiration: 2031-01-20

Abstract

The utility model relates to a cutter capable of quickly switching holding postures, which adopts a brand new structural design, wherein a through hole (3) penetrating through two side surfaces of a cutter handle device (1) is formed for placing an index finger of a holding hand, and the through hole is matched with two inner arc edges on the side edge corresponding to the through hole (3) and an outer arc edge on the cutter handle device (1), so that the same forward holding hand feeling and backward holding hand feeling of the cutter are obtained by using the holding parts with the same length while the holding stability is improved, and the designed structure provides a good force application position and ensures the use efficiency under two holding postures; simultaneously to cutting edge device (2), design the structure of the point portion of front end, the inner arc structure of cutting edge (4) and cutting edge inner arc (6) structure, provided the multiple using-way of cutter to can obtain outstanding result of use.

Description

Cutter capable of quickly switching holding postures

Technical Field

The utility model relates to a cutter capable of quickly switching holding postures, and belongs to the technical field of cutters.

Background

The knife is a short weapon with a single-side long edge, and is provided with a knife handle and a knife edge, the knife is applied through the knife edge, most of common knives in life are gripped in a single posture, namely, the common knives can be gripped and used only in one mode, the use is limited, the force application point corresponding to the practical use of the knife is also single, in addition, the existing knife is also provided, namely, the knife can be held in a forward and backward mode, but in the switching process of the two modes, the knife is easy to slip off, the gripping is unstable, and the existing knife is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a cutter capable of quickly switching holding postures, adopting a brand new structural design, realizing various stable holding modes and improving the use efficiency of the cutter.

The utility model adopts the following technical scheme for solving the technical problems: the utility model designs a cutter capable of quickly switching holding postures, which comprises a cutter handle device and a blade device, wherein the tail end of the blade device is fixedly butted with the front end of the cutter handle device, and the surface where the blade device is located and the surface where the cutter handle device is located are coplanar; the knife handle device is provided with a through hole penetrating through two side surfaces of the knife handle device, the inner diameter of the through hole is adapted to the outer diameter of a preset index finger, the positions of the side edge of the knife handle device in the same direction as the cutting edge in the cutting edge device, which corresponds to the through hole, and the positions of the two sides of the side edge, which protrude out of the side edge, form protruding positions on the side edge of the knife handle device in the same direction as the cutting edge, the protruding positions respectively form an inner arc shape with the edge between the front end and the tail end of the knife handle device on the side edge of the knife handle device where the protruding positions are located, and the other side edge of the knife handle device, which is opposite to the side edge, forms an outer arc shape.

As a preferred technical scheme of the utility model: on the surface of the tool shank device, a straight line where a connecting line between the center position of the through hole and the protruding position between the two inner arcs on the tool shank device is defined is a reference axis, and parts on the surface of the tool shank device, which respectively correspond to two sides of the reference axis, are axisymmetric relative to the reference axis.

As a preferred technical scheme of the utility model: the knife edge on the knife edge device is in an inner arc shape, the vertex of the knife edge corresponding to the front end of the knife edge device is connected with the vertex of the knife back corresponding to the tail end of the knife edge device, the connected edge is defined as a knife back edge, and the included angle formed by the vertex of the knife edge corresponding to the front end of the knife edge device, the knife back edge and the knife edge is an acute angle.

As a preferred technical scheme of the utility model: the back edge of the knife is in an outer arc shape.

As a preferred technical scheme of the utility model: the included angle formed by the vertex of the blade corresponding to the front end of the blade device, the back edge of the knife and the blade is 2-10 degrees.

As a preferred technical scheme of the utility model: and an inner arc is formed between the vertex position of the blade corresponding to the tail end of the blade device and the vertex of the side edge of the knife handle device where the two inner arc edges are located and corresponding to the front end of the knife handle device, and the inner arc is defined as the blade inner arc.

As a preferred technical scheme of the utility model: two vertexes on the blade, the protruding position between the two inner arc-shaped edges on the knife handle device and four vertexes of the vertex at the tail end of the knife handle device corresponding to the side edges where the two inner arc-shaped edges are located on the knife handle device are collinear, and the collinear is a straight line.

As a preferred technical scheme of the utility model: the blade device and the knife handle device are of an integrated structure.

As a preferred technical scheme of the utility model: the handle device is characterized by further comprising two handle blocks with the same shape and structure, wherein the shape, the structure and the size of each handle block are the same as those of the surface of the handle device, and the two handle blocks are fixedly arranged on the two side surfaces of the handle device and correspond to the surface postures of the handle device respectively.

Compared with the prior art, the cutter capable of rapidly switching holding postures has the following technical effects:

the cutter capable of rapidly switching the holding postures is designed by adopting a brand new structural design, the through hole penetrating through the two side surfaces of the cutter handle device is formed for the cutter handle device, the index finger of the holding hand is placed, the two inner arc-shaped edges on the side edges corresponding to the through hole are matched, the outer arc-shaped edges on the cutter handle device are matched, the holding parts with the same length are used for obtaining the same forward holding hand feeling and reverse holding hand feeling for the cutter while the holding stability is improved, the designed structure provides a good force application position, and the use efficiency of the two holding postures is ensured; simultaneously to the cutting edge device, design the tip structure of front end, the inner arc structure of cutting edge and cutting edge inner arc structure, provide the multiple using-way of cutter to can obtain outstanding result of use.

Drawings

FIG. 1 is a schematic view of the structure of the tool for rapidly switching the grip posture according to the present invention.

The knife comprises a knife handle device 1, a knife edge device 2, a through hole 3, a knife edge 4, a knife back edge 5 and a knife edge inner arc 6.

Detailed Description

The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.

Based on the design thought, the utility model specifically designs a cutter capable of quickly switching holding postures, as shown in fig. 1, the cutter comprises a cutter handle device 1 and a blade device 2, the tail end of the blade device 2 is fixedly connected with the front end of the cutter handle device 1 in a butt joint mode, and the surface where the blade device 2 is located and the surface where the cutter handle device 1 is located are coplanar with each other; the knife handle device 1 is provided with a through hole 3 penetrating through two side faces of the knife handle device 1, the inner diameter of the through hole 3 is adapted to the outer diameter of a preset index finger, the positions of the side edge of the knife handle device 1 in the same direction as the knife edge 4 in the knife edge device 2, which correspond to the through hole 3, protrude out of the positions of two sides of the side edge, so that the protruding position of the side edge of the knife handle device 1 in the same direction as the knife edge 4 is formed, the protruding position of the side edge of the knife handle device 1 in the same direction as the knife edge is formed into an inner arc shape with the edge between the front end and the tail end of the knife handle device 1, and the other side edge of the knife handle device 1 opposite to the side edge is formed into an outer arc shape.

In practical application, for the tool shank device 1, on the surface of the tool shank device 1, a straight line defining a connecting line between the center position of the through hole 3 and the protruding position between two inner arcs on the tool shank device 1 is a reference axis, and parts of the surface of the tool shank device 1, which respectively correspond to two sides of the reference axis, are axisymmetric relative to the reference axis; the design of the symmetrical structure can obtain the gripping parts with the same length when the knife is positively held or reversely held, so that the positive holding hand feeling and the reverse holding hand feeling can be ensured to be the same, the length of the knife handle device 1 is fully utilized, the positive holding area and the reverse holding area are divided, the positive holding part and the reverse holding part with the same length are obtained, and the whole knife handle device 1 is free from any redundant waste.

For the practical application of the blade device 2, the blade 4 on the blade device 2 is designed to be in an inner arc shape, so that the blade 4 becomes sharper due to the inner arc-shaped blade 4, and various operations of scratching and cutting can be realized; the vertex of the blade 4 corresponding to the front end of the blade device 2 is connected with the vertex of the blade back corresponding to the tail end of the blade device 2, the connected edge is defined as a blade back edge 5, and the included angle formed by the vertex of the blade 4 corresponding to the front end of the blade device 2, the blade back edge 5 and the blade 4 is an acute angle, and in practical application, the acute angle is designed to be 2-10 degrees, namely a tip is formed aiming at the front end of the blade device 2, so that a forward poking operation can be obtained in application; in practice, the back edge 5 for obtaining this tip may in particular have an outer arc design.

In practical application, the position corresponding to the end of the blade device 2 on the blade 4 is further specifically designed to be an inner arc shape, and the inner arc is defined to be a blade inner arc 6, so that when the blade 4 is used for cutting a liquid-carrying article, when the blade is held and lifted upwards, liquid attached to the blade 4 flows along the blade 4, and only the liquid flows to the position where the blade 4 is in butt joint with the blade inner arc 6, namely falls off, but cannot fall on the grasping handle, and the contact between the grasping hand and the liquid for cutting the article is avoided.

In practical application, the vertex of the inner arc 6 of the blade corresponding to the tail end of the blade device 2 is designed to be butted with the vertex of the side edge of the handle device 1 where the two inner arc edges are located, which corresponds to the front end of the handle device 1, so that smooth curve butting is realized for the inner arc edges of the handle device 1 facing the front end of the handle device and the inner arc 6 of the blade, and when the knife is reversely held, comfortable gripping feeling can still be obtained.

In the overall structure design of the knife handle device 1 and the knife edge device 2 in the designed knife, two vertexes on the knife edge 4, the protruding position between the two inner arc-shaped edges on the knife handle device 1 and four vertexes of the vertex of the tail end of the knife handle device 1 corresponding to the side edges where the two inner arc-shaped edges on the knife handle device 1 are located can be further designed to be collinear, and the collinear is a straight line. Due to the design, the designed cutter can be placed in the actual plane posture, the four vertexes are collinear, the side of the cutter can be attached to the side wall to be placed, and the space utilization rate is considered.

For the designed cutter capable of rapidly switching holding postures, the cutting edge device 2 and the cutter handle device 1 are designed to be of an integrally formed structure in practical application, the firmness of connection between the cutting edge device 2 and the cutter handle device 1 can be improved, the service life can be longer, in addition, in practical application, two handle blocks with the same shape and structure can be further designed, the shape, the structure and the size of each handle block are the same as those of the surface of the cutter handle device 1, and the two handle blocks are fixedly arranged on the two side faces of the cutter handle device 1 respectively corresponding to the surface postures of the cutter handle device 1.

The cutter capable of quickly switching holding postures is applied to the practice, the index finger of a gripping hand of an operator extends into the through hole 3 on the surface of the cutter handle device 1, when the operator grips, the operator grips the inner arc-shaped part of the cutter handle device 1 corresponding to the tail end direction of the operator, namely the inner arc-shaped edge of the cutter handle device 1 corresponding to the tail end direction of the operator is gripped by the middle finger, the ring finger and the little finger, and the thumb is attached to the part of the outer arc edge of the cutter handle device 1 corresponding to the front end direction of the cutter handle device 1; when an operator reversely holds the tool, the operator grasps the inner arc part of the handle device 1 corresponding to the front end direction of the handle device by the hand, namely the middle finger, the ring finger and the little finger grasp the part of the outer arc edge of the handle device 1 corresponding to the front end direction of the handle device 1, and the thumb sticks to the inner arc part of the handle device 1 corresponding to the tail end direction of the handle device, so that the forward holding posture or the reverse holding posture of the tool designed for rapidly switching the holding posture is realized.

According to the cutter capable of quickly switching the holding postures designed by the technical scheme, a brand new structural design is adopted, the through hole 3 penetrating through the two side surfaces of the cutter handle device 1 is formed for the cutter handle device 1, the index finger of the holding hand is placed, the two inner arc-shaped edges on the side edges corresponding to the through hole 3 are matched, and the outer arc-shaped edges on the cutter handle device 1, so that the same forward holding hand feeling and backward holding hand feeling for the cutter are obtained by using the holding parts with the same length while the holding stability is improved, and the designed structure provides a good force application position, so that the use efficiency of the two holding postures is ensured; simultaneously to cutting edge device 2, design the tip structure of front end, the inner arc structure of cutting edge 4 and cutting edge inner arc 6 structure, provided the multiple using-way of cutter to can obtain outstanding result of use.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A cutter capable of quickly switching holding postures comprises a cutter handle device (1) and a cutting edge device (2), wherein the tail end of the cutting edge device (2) is fixedly butted with the front end of the cutter handle device (1), and the surface where the cutting edge device (2) is located and the surface where the cutter handle device (1) is located are coplanar with each other; the method is characterized in that: the knife handle device (1) is provided with a through hole (3) penetrating through two side faces of the knife handle device, the inner diameter of the through hole (3) is adapted to the outer diameter of a preset index finger, the positions of the side edge of the knife handle device (1) in the same direction as the cutting edge (4) in the cutting edge device (2) corresponding to the through hole (3) and the positions protruding out of two sides of the side edge form protruding positions on the side edge of the knife handle device (1) in the same direction as the cutting edge (4), the protruding positions respectively form an inner arc shape with the edge between the front end and the tail end of the knife handle device (1) on the side edge of the knife handle device (1) where the protruding positions are located, and the other side edge of the knife handle device (1) opposite to the side edge forms an outer arc shape.

2. The tool for rapidly switching the grip posture according to claim 1, wherein: on the surface of the knife handle device (1), a straight line on which a connecting line between the center of the through hole (3) and the protruding position between the two inner arcs on the knife handle device (1) is defined is a reference axis, and parts on the surface of the knife handle device (1) corresponding to two sides of the reference axis respectively form axial symmetry relative to the reference axis.

3. The tool for rapidly switching the grip posture according to claim 1 or 2, wherein: cutting edge (4) on cutting edge device (2) are interior arc, and the summit that corresponds cutting edge device (2) front end on cutting edge (4) links to each other with the back of a knife between the summit that corresponds cutting edge device (2) end on the back of a knife, and defines this continuous limit as back of a knife limit (5) to and the contained angle that the summit that corresponds cutting edge device (2) front end on cutting edge (4) and back of a knife limit (5), cutting edge (4) constitute is the acute angle.

4. The tool for rapidly switching the grip posture according to claim 3, wherein: the knife back edge (5) is in an outer arc shape.

5. The tool for rapidly switching the grip posture according to claim 3, wherein: the included angle formed by the vertex corresponding to the front end of the blade device (2) on the blade (4), the knife back edge (5) and the blade (4) is 2-10 degrees.

6. The tool for rapidly switching the grip posture according to claim 3, wherein: and an inner arc is formed between the vertex position of the cutting edge (4) corresponding to the tail end of the cutting edge device (2) and the vertex of the side edge of the knife handle device (1) where the two inner arc edges are located and corresponding to the front end of the knife handle device (1), and the inner arc is defined as a cutting edge inner arc (6).

7. The tool for rapidly switching the grip posture as claimed in claim 6, wherein: two vertexes on the cutting edge (4), the protruding position between the two inner arc-shaped edges on the knife handle device (1) and four vertexes of the vertex, corresponding to the tail end of the knife handle device (1), of the side edges where the two inner arc-shaped edges are located on the knife handle device (1) are collinear, and the collinear is a straight line.

8. The tool for rapidly switching the grip posture as claimed in claim 7, wherein: the knife edge device (2) and the knife handle device (1) are of an integrated structure.

9. The tool for rapidly switching the grip posture as claimed in claim 8, wherein: the novel electric screwdriver is characterized by further comprising two handle blocks with the same shape and structure, wherein the shape, the structure and the size of each handle block are identical to those of the surface of the screwdriver handle device (1), and the two handle blocks are fixedly arranged on the two side faces of the screwdriver handle device (1) and correspond to the surface postures of the screwdriver handle device (1).